The periodic table is a chart that shows how elements are arranged. It is based on how electrons are set up in an atom.
Groups and Periods:
Groups are the columns of the table. They show elements that behave similarly because they have the same number of electrons in their outer shell. For example, all the alkali metals in Group 1 have one electron in their outer shell.
Periods are the rows of the table. They show how many layers, or shells, of electrons an element has. Each new period starts when a new layer of electrons is filled up.
Blocks:
The periodic table is also split into sections called blocks: the s-block, p-block, d-block, and f-block. This is based on which type of electron shell is being filled.
For instance, elements in the p-block are those where the last electron goes into the p shell.
This layout helps us understand how different elements will act and react with each other!
The periodic table is a chart that shows how elements are arranged. It is based on how electrons are set up in an atom.
Groups and Periods:
Groups are the columns of the table. They show elements that behave similarly because they have the same number of electrons in their outer shell. For example, all the alkali metals in Group 1 have one electron in their outer shell.
Periods are the rows of the table. They show how many layers, or shells, of electrons an element has. Each new period starts when a new layer of electrons is filled up.
Blocks:
The periodic table is also split into sections called blocks: the s-block, p-block, d-block, and f-block. This is based on which type of electron shell is being filled.
For instance, elements in the p-block are those where the last electron goes into the p shell.
This layout helps us understand how different elements will act and react with each other!